Special clamp for machining cross-shaped connector for petroleum transmission pipeline
By designing a special oil transmission pipeline cross-connector machining fixture, the problems of low processing accuracy and efficiency in the existing technology are solved, efficient and accurate thread processing are achieved, and product quality and output are improved.
Patent Information
- Application Number
- CN202420886106.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-26
AI Technical Summary
The prior art is difficult to ensure accuracy and efficiency during the processing of cross-connectors of oil transmission pipelines, especially in the processing of threads.
A special fixture for processing cross-connector head of oil transmission pipeline is designed, including a detachable fixture seat, positioning groove, clamping column and pressing and fixing mechanism. Through the precise design and combination of these components, stable positioning and efficient fixing of the workpiece can be achieved.
This fixture can significantly improve processing efficiency while ensuring accuracy, ensure the improvement of output, and be versatile, and is suitable for other subsequent processing stations.
Smart Images
Figure CN222588867U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a special clamp for processing a cross connector for a petroleum transmission pipeline. Background Art
[0002] The cross connector is a connecting part used in oil transmission pipelines and is a non-standard part with a unique structure. When our manufacturer received the processing task of this workpiece, its main part had been completed and was a semi-finished product. There was a penetrating through hole in the middle of the workpiece that needed to be threaded. In order to ensure the processing accuracy and quality, and to complete the order task on time, it is necessary to improve work efficiency and design a special fixture. Utility Model Content
[0003] The technical purpose of the utility model is to provide a special fixture for processing a cross connector for an oil transmission pipeline, which can ensure that the processing accuracy meets the process requirements, improve product quality, and greatly improve processing efficiency to ensure output.
[0004] In order to achieve the above technical purpose of the utility model, the technical solution adopted is:
[0005] A special fixture for processing cross connectors for oil transmission pipelines comprises a fixture base body detachably mounted on a working table of a processing machine tool, wherein the fixture base body is a cylindrical table body, a rectangular positioning groove for embedding the middle part of a cross-connected workpiece to be processed is provided in the center of the fixture base body, symmetrical arc-shaped clearance grooves are provided at the four corners of the positioning groove, a circular clearance hole corresponding to the circular hole in the middle part of the cross-connected workpiece to be processed is provided in the center of the positioning groove, a pair of clamping columns symmetrically arranged front and back are provided on the front and rear sides of the positioning groove, a pair of supporting columns are used to clamp and position the symmetrical cylinders of the cross-connected workpiece located at the front and rear ends of the middle part, and symmetrical clamping and fixing mechanisms for clamping and fixing the cross-connected workpiece are provided on the left and right sides of the positioning groove.
[0006] Furthermore, the clamping and fixing mechanism for clamping and fixing the cross connector workpiece described in the utility model includes symmetrical positioning columns fixed on the left and right sides of the positioning groove and a clamping block passed through the positioning columns, the clamping block is provided with a positioning hole for passing the positioning column, a long countersunk hole and a matching fixing bolt passing through the countersunk hole are provided on the clamping block next to the positioning hole, and a threaded hole is provided on one side of the positioning column corresponding to the positioning bolt.
[0007] The operation process of the positioning fixture of the utility model when used is: first, the fixture base is installed on the workbench of the processing machine tool; secondly, the middle part of the cross connector to be processed is just embedded in the positioning groove on the fixture base, and the cylindrical arms at the front and rear ends of the middle part of the cross connector are just clamped between a pair of clamping columns located on the front and rear sides of the positioning groove; then, the middle part of the cross connector is fixed on the fixture base by a clamping and fixing mechanism, and further processing such as threading is started.
[0008] The beneficial effects of the utility model are:
[0009] The positioning groove designed in the utility model can accurately and stably embed the workpiece in the groove, and then the two cylindrical arms of the workpiece can be fixed and positioned by the clamping columns on both sides, and finally the workpiece can be firmly fixed and positioned on the fixture by the clamping and fixing mechanism. Then the thread processing of the central through hole of the workpiece can be completed efficiently and accurately. The circular clearance hole on the fixture seat body 1 facilitates the working stroke of the thread turning tool and also facilitates the timely cleaning of the produced iron filings. The fixture can also be used on other subsequent processing stations and different machine tools, and has good versatility. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of the positioning fixture and the corresponding cross connector workpiece described in the embodiment of the utility model when they are not assembled and are separate.
[0011] Figure 2 It is a structural schematic diagram of the positioning fixture and the corresponding cross connector workpiece when they are assembled into a whole according to the embodiment of the utility model.
[0012] Figure 3 It is a structural schematic diagram of the positioning fixture described in the embodiment of the utility model.
[0013] In the figure: 1 clamp seat, 2 positioning groove, 3 arc-shaped clearance hole, 4 circular clearance groove, 5 a pair of clamping columns, 6 cross connector, 7 positioning column, 8 clamping block, 9 positioning hole, 10 long strip countersunk hole, 11 fixing bolt, 12 threaded hole. DETAILED DESCRIPTION
[0014] As attached Figure 1 , 2The utility model shows an embodiment of a special fixture for processing a cross connector for oil transmission pipelines, which includes a fixture seat body 1 that can be detachably mounted on a processing machine tool workbench, and the fixture seat body 1 is a cylindrical table body. A rectangular positioning groove 2 for embedding the middle part of the cross-connected workpiece to be processed is provided in the center of the fixture seat body 1. Symmetrical arc-shaped clearance grooves 3 are provided at the four corners of the positioning groove 2. A circular clearance hole 3 corresponding to the circular hole located in the middle of the middle part of the cross-connected workpiece 6 to be processed is provided in the center of the positioning groove 1. A pair of clamping columns 5 that are symmetrical in front and back are respectively provided on the front and rear sides of the positioning groove 2, and a pair of supporting columns 5 are used to clamp and position the symmetrical cylindrical arms of the cross connector workpiece located at the front and rear ends of the middle part. Symmetrical clamping and fixing mechanisms for clamping and fixing the cross connector workpiece are respectively provided on the left and right sides of the positioning groove 2. The clamping and fixing mechanism includes symmetrical positioning columns 7 fixed on the left and right sides of the positioning groove 2 and a clamping block 8 penetrated on the positioning column 7. The clamping block 8 is provided with a positioning hole 9 for passing the positioning column 7, and a long countersunk hole 10 and a matching fixing bolt 11 passing through the countersunk hole 10 are provided on the clamping block 8 next to the positioning hole 9, and a threaded hole 12 is provided on one side of the positioning column 7 corresponding to the positioning bolt.
Claims
1. A special fixture for processing cross connectors for oil transmission pipelines, characterized by: The fixture includes a fixture base body that can be detachably mounted on a machine tool workbench. The fixture base body is a cylindrical table body. A rectangular positioning groove for embedding the middle part of a cross-connected workpiece to be processed is provided in the center of the fixture base body. Symmetrical arc-shaped clearance grooves are provided at the four corners of the positioning groove. A circular clearance hole corresponding to the circular hole in the middle part of the middle part of the cross-connected workpiece to be processed is provided in the center of the positioning groove. A pair of clamping columns that are symmetrical front and back are provided on the front and rear sides of the positioning groove, a pair of supporting columns are used to clamp and position the cross-connector workpiece, and the symmetrical cylinders located at the front and rear ends of the middle part. Symmetrical clamping and fixing mechanisms for clamping and fixing the cross-connector workpiece are provided on the left and right sides of the positioning groove.
2. A special fixture for processing a cross connector for a petroleum transmission pipeline according to claim 1, characterized in that: The clamping and fixing mechanism for clamping and fixing the cross connector workpiece includes symmetrical positioning columns fixed on the left and right sides of the positioning groove and a clamping block passed through the positioning columns. The clamping block is provided with a positioning hole for passing the positioning column. A long countersunk hole and a matching fixing bolt passing through the countersunk hole are provided on the clamping block next to the positioning hole. A threaded hole is provided on one side of the positioning column corresponding to the positioning bolt.